<ng-container *ngIf="highlightText"><span [innerHTML]="renderHighlightString(getOptionLabel())"></span></ng-container>
<ng-container *ngIf="!highlightText">{{ getOptionLabel() }}</ng-container>
<span *ngIf="!option.isLeaf || option.children && option.children.length || option.loading" class="ant-cascader-menu-item-expand-icon">
  <i nz-icon [type]="option.loading ? 'loading' : 'right'"></i>
</span>